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Finding the Fourth Proportional to 35,781.67, 53,666.42 and 9,489.07

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Solution

The fourth proportional to 35,781.67, 53,666.42 and 9,489.07 is: 14,231.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,781.67 : 53,666.42 = 9,489.07 : x
  2. Step 2: Convert to fraction form
    35,781.67/53,666.42 = 9,489.07/x
  3. Step 3: Cross multiply
    35,781.67x = 53,666.42 × 9,489.07
  4. Step 4: Simplify right side
    35,781.67x = 509,244,305.59
  5. Step 5: Solve for x
    x = 509,244,305.59/35,781.67
  6. Step 6: Final answer
    x = 14,231.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.